Notes: The option: BatchLookupCacheJoinSize, impact the Salesforce Query string sent to Salesforce.com. (SOQL) If you get an error that suggests the query has timed out on the server size or the query string is too long, please try to reduce this value. The reason is that Salesforce.com has two restrictions on the SOQL query string.

Salesforce.com Queries that take longer than two minutes to process will be timed out.